I've gotten them here...
http://www.bullysticks.com/Merchant2...tegory_Code=BS for $21.75 (10 each, 6 in. long) and $17.93 (10 each, 5 in. long). That includes the shipping cost also.
I really need to take the time to see if they are cheaper elsewhere but this was such a better price than the pet boutique I had gotten some that I just went ahead and ordered. Let me know if you find a better price.